# iA-Fonts # iA-Fonts The iA Writer fonts are bundled with [iA Writer for Android, Windows, macOS, iPadOS, and iOS](https://ia.net/writer/). iA Writer is the only text editor with which we approve bundling these fonts. Our usage guidelines are: 1. Do not create text editors that bundle our fonts or use them as their default typefaces. This includes minimalist text editors. 2. Do not distribute renamed versions of our fonts with only minor changes. 3. If you want a similar typeface for your editor, use [IBM Plex](https://github.com/IBM/type). 4. You may install iA Writer fonts as custom fonts for personal use in other text editors. Do not redistribute them with those editors. 5. Do not distribute plugins, themes, or other products that imitate iA Writer, whether paid or free. If you fork or use our fonts outside text editors, clearly credit iA Writer. If you want our entire philosophy of creativity and copying, read our article on [copycats](https://ia.net/topics/copycats-and-other-monsters) For background on iA Writer Mono, Duo, and Quattro, read our articles on [Duospace](http://ia.net/topics/in-search-of-the-perfect-writing-font/) and [iA Writer Mono, Duo, and Quattro](https://ia.net/topics/a-typographic-christmas). These fonts are modified versions of IBM Plex. The upstream project is available [here](https://github.com/IBM/type). Please read the license file before using, modifying, or distributing the fonts.